Internal-combustion rotary engine.



.Nm 851,962. PATBNTED APR. so, 1907.

L. P. PRossEN.

INTERNAL.COMBUSTIONROTARY ENGINE.

' APPLIOATION :Pumpv APB.4,1906.

2 SHEETS-SHEET 1 No. 851,962. PATENTBD APR. 30, 1907.

` V L.,P. PROSSEN.

INTERNAL COMBUSTION ROTARY ENGINE. APPLIOATION FILED APR.4,1906.

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Y Specication of Letters Patent.

,ratentesnnrn so. 1cm.r

Application ned April 4, 19061 semi N0. 309.774.

ments in lnternzil-Combustion Rotary E11-- gilles, of which the following is a specification. Y0'A This invention'relates to an internal cornbustion ,rotary engine of the compression type.

In the drawings :forming part of this speciiication Figure 1 illustrates a central cress- 1 5 section of my improved engine. Fig. illustrates a longitudinal central section taken on -a line a-ct inplig. l. Figa Sillustrates my improved engine 'with a :modified form of operating means ier the scavenging'sdevice, 2O and is e longitudinal section teken on line b-b, Fig. 1; and Fig. llis 's cross section taken on line c-c Fig. I3, looking in the direction of the arrow. p

1V indicates the casing ci' niy'engine, which caribe formedby castinghor be lbuilt up.

A cest casing is herein illustrated and is provided with an' annular recess or channel 2' which, by the aid'of the jacket 3 forms e "chamber for the circulation et' e cooling .3 .-,1 luid. l Tosthe casing 1v I fasten, by' means of the bolts, etc., heads @Whichare recess-ed, or ,-,provid'ed with a channel or recess 6. The eliannel is covered by a jacket 7. A cooling -fluid,chamber is thereby formed forf the l heads 5. The channel or recess is preferably limited to the region of operation oi the -hot gases, as shown. A passage 8 connects lthech'ennel 6 with thechannel 2, a thorough:

V49 circulation ,being thereby accomplished.

' The lowerend or the heads cany termina'te fin. a 'loot or stand Q which will support the r engme;

Within the casing 1 l rotatably mount e '45 drum 10, the axis or shaft 1l oi said. drurnl being eccentrically mounted in the heeds 5|, the heads being provided with bearings' 151." The diameter of the drunl l() is such as to ,'cause the periphery thereof to contact the '5o inner surface' 13 of the casing .1 ntloereby forming an abutment 1li tor the explosion .to vact against. Slideble pistons 15,-.arecerried bythe drum 1i) and are backed by the springsl, for .the purpose oli insuring a uick'action upon the part of the pistons peningsj17 `are provided to. connect 'the piston slots 13 with the chambers 419, and thereby cause the pistons l5, to be 'forced out by air pressure in the event of the failure to act, upon 'the part of the springs' 18. -The air pressure `also aidsejthe springs to perform their function.' Anginlct for the passage of an explosive mixture is provided at 20. A pipe 21 connects thel said inlet with any suitable mixing device. An exhaust passage 22 is also provided, togetherA with an ignition plug 28.

-ln order thetr the drum 10 shall not becorne overheated l provide a chamber 24 within the saine, the end'w'alls 25, of Which are perforated es :it 26, ',hesaid perforstions communicating 'with openings 27, in the heads, by this means the chamber 24 is open to the oessegefoeir*which can be supplied by a blower or'by natural draft, or any other means. Vl/ithin the periphery of the. drum 10- l provide pockets 28, which act as reservoirsA for the compressed mixture, and also to increase the capacity of the compression space. Y

By altering the pockets 28 am able to increase or decrease the degree ci. compression, which is obvious. As the drum l() 1s eccentric to the axis olifthe casing it is obvious that the pockets, in turn, will approach the contacting point, or abut-nient, 1li as the,clrur'nable to compress the mixture. y

llie intake ol the niixtin'e takes place eta position where the cli-uffi is farthest from the inner surface 'of the cesin as' at 29.., The mixture being taken in at t is point, is grade ually compressed es the pocket -approsches the point where it will attain the maximum. 'vl/When the pocket passes the point revolves; it is due to this action that I am 14 the compressed Amixture is ignited by the plug he torce of the ex* lesion acts upon one' ci' the pistons 15, an will drive the drum still iarther, or give it'enotherimpulse. When the piston reaches the exhaust 22 the burnt wili esca Je. 'During the passage of .the drum from tie ignition point to the exhaust, :mother pocket has been Acompressstill en'otnerlreceiving e charge of mixture. i ,l

Fig. .i @illustrates tliedrum--at about the igritionl point. e

is soon 'as a' pocket has 4exhausted it Willy lt will oi. course be understood that l. WillV V.enr-ploy suitable tuning device for the spark plug; also e suitable source .of elec'trlcal vroo an ignition device, and an exhaust passage.

Signedat New York city in the county of New York andState othl ew York this 17th'9 day of March A. D, 1906.

LOUIS P. PROSSEN.

the casing at one point thereof, said drum being rovided with peripherall pockets, vmovab e` scavenging devices in said pockets and between said pistons, means adapted to operate said scavenging devices, an inlet for an explosive mixture, an ignition device,vand'an` exhaust pasl sage. g 2. An internal combustion rotary engine l adapted to Contact Vilitnesses EDWARD A. JAn'vl's, .FnLix P. PRossnN.

power therefor, and a power transmitting l comprising a casing, a rotatable drum Within means for the shaft. A ily-Wheel can also said casing providedwith pistons, said drum 5 be used, if desirable, asshown. being eccentric to the axis of said casing and In order that a4r thorough exhaust .may f adapted to contact the casing at one 'oint y take place I provide auxiliary scavenging j thereof, said drum being provided wit pewings 30 which normally lie inv recesses 31 ripheral pockets, scavenging wings pivotally within the pockets 28, 28, 28, 28. The mounted in said pockets, means adapted to. 5 5 wings are pivotally mounted as at 32, the l throw said wings outwardly at a predetershaft 33 being provided at one end thereof f mined point during the rotation of said drum, with an arm 34 the pin 35 of which enters i an inlet for an explosive mixture, an ignition a cam groove 36 formed in one ofthe heads device and an exhaust passage. Y 5. The groo've 36 has a cam portion 37 3. internal combustion rotary engine 6o which is properly positioned with respect comprlsmg a casing, arotatable drum within to the exhaust period. As the drum is rosaid casing provided with pistons, said drum tated the wings 30 are thrownoutwardly, at being provided with an interior chamber havthe proper time, thereby forcing the prodg ing no communication with the compression uots of combustion toward the exhaust 22. space within said casing, an inlet for cooling 65 In the modified form Figs. and 4 the medium to said chamber, said drum being wings 30 are operated by a cam 37 which is provided with peripheral-pockets scavengingV carried by a shaft 3S rigidly held in a bushwings pivotally mounted in said pockets, ing 3Q by means of the key 40, the bushing means adapted to throwsaid wings outwardly -being held against-rotation by a key 4l which ata predetermined pointduring the rotation 7o is fitted to the bearing 42; the drum revolves of said drum, an inlet for an explosive mixupon the bushing. The drum 10 is fitted ture, an ignition device, and an exhaust paswith a hollow shaft 43, which is rotatably sage. l supported in the bearing 4.4, and carries a 4. An internal combustion rotar? engine belt pulley 45. In the drum l() are littedthe comprising a casing, heads for said casing one 7 5 plungers 46 which are provided with rollers of which is provided with a cam groove, a ro.- v-ltwhich ride uponth'e cam 37. The cam tatable drum in said casing provided with 37/ is so se't that the Wings 30 are thrown out pistons, peripheral pockets 1n said drum, at the proper time, the wings being returned scavenging wings pivotally mounted in said by the springs 4'7. i pockets, means carried by said wings adapt- 8o In other respects the two forms are alike. ed to engage the cam groove vin said head What I claim and desire to cover by Letwhereby said wings are thrown outwardly at ters Patent is' a predetermined point, said drum being also 1. An internal combustion rotary engine 'provided' with an interior chamber, means' comprising a casing. a rotatable drum within adapted to permit of the introduction of a 85 said casing provided with pistons, said drum cooling medium to said chamber through being eccentric to the ,axis of said casing and said heads, an inlet for an explosive mixture, 

